Skip to main content
. Author manuscript; available in PMC: 2017 Mar 1.
Published in final edited form as: Am J Obstet Gynecol. 2016 Mar;214(3):369.e1–369.e8. doi: 10.1016/j.ajog.2016.01.001

Figure 4. Contrast-enhanced ultrasound in an 11 week gestation human subject.

Figure 4

(A) Sequential frames taken at 2 second (s) intervals post ‘burst’. The yellow dotted line outlines the placenta and the earth map overlay aids visualization of placental perfusion in the late first trimester with a color scale bar indicated from low (blue) to high (red-purple) blood flow. (B) The white overlays represent four individual cotyledons within the 11 week placenta labeled 1 to 4, and (C) Flux rate in each of the four individual cotyledons demonstrating regional variance in perfusion kinetics within the placenta.